Ioannis Ilkos 15207c2985 ANDROID: add ion_stat tracepoint to common kernel
Emitted an event whenever ion buffers are created or freed.
This enables tracking ion memory utilization changes, as well as
individual buffer allocations.

This was inspired by the pixel kernel patches by timmurray@ and
carmenjackson@.

Test: manual test on cuttlefish
Bug: 154302786
Change-Id: I4d4b23ae4dbda5012d3582f5564a87e0d08c68c7
Signed-off-by: Ioannis Ilkos <ilkos@google.com>
2020-04-21 22:35:57 +01:00
2020-04-21 10:20:12 +02:00
2020-04-18 13:33:51 +02:00
2020-04-21 10:20:12 +02:00
2020-03-03 07:33:01 +01:00
2020-04-21 10:20:12 +02:00
2020-04-21 10:20:12 +02:00
2020-04-21 10:20:12 +02:00
2020-04-21 10:20:12 +02:00
2020-04-21 10:20:12 +02:00
2020-04-18 13:33:51 +02:00
2020-03-03 07:33:01 +01:00
2020-04-21 10:20:12 +02:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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